Gas burner



'Patented Feb. 3, 1931 UNITED 1 STATES PATENT oFFlcie.A

y.ALFRED J'. REEDY, 0F BATTL-E CREEK, MICHIGAN, ASSIGNOR T0 A-B STOVECOMPANY,

0F BATTLE CREEK, MIGHIG-AN y GAS BURNER Application mea Maren s,

, The main vobject of this invention is to provide a gas burner forcooking stoves which is very compact and at thesame time is eficient,the gas being very uniformly distributed throughout the burner.

A further object is to provide a gas burner which is well adapted uforuse in cooking stoves or ranges having concealed mani-folds, that is,manifolds that are set into or covered by the frame, thereby decreasingthe burner space. A

Objects pertain-ing to details and economies of my invention willdefinitely appear from the description to follow. The invention is'defined in the claims. l

A structure which embodies the features of my 'oinvention is clearlyillustrated in the `provements in an embodiment which I haveaccompanying drawing in which:

Fig. 1 is a fragmentary side view of my' improved burner partially invertical section on a line corresponding to line 1-1 of Figs. 2 and 3..

Fig. 2 is a fragmentary plan view partially in horizontal section online 2 2 of Fig. l, the position of certain of the yburner arms removedby the sect-ioning being indicated by dotted lines.

Fig. 3 is an enlarged detail on line 3-3 of Figs.v 1 and 2. so Myimproved burner comprises an annular body 1 having an annular passage orchamber 2 therein and radial arms 3 opening to the passage. The jetorifices 4c are arranged in radial series so that they are uniformly 85distributed about the burner.

The mixing tube 5 is relatively short and is dispose/d tangentially ofthe annular body and its Venturi passage Gopens tangentially 4into theannular passage of the burner body which constitutes a circularextension or continuation thereof. The inwardly expanding portion of theventuri indicated at 7 merges into the wallsof the passage 2. Thismixing tube is arranged in a plane below the radial arms and its top'wall 8 projects into the passage 2 and also its inner side wall 9.These walls constitute baffles for the overlying burner arms and serve.to direct the incoming mixture or gases into the burner passage so thatit Hows around the same in one direction.

i929. serial No.v 344,309.

The gas nozzle indicated at 10 is controlled from the valve 11. The airshutter is indicated at 12. This arrangementjpermits the A forming ofthe burner with a very short pro.- jecting B unsen tube portion as aportion of the mixing tube is within the burner body, and at the sametime the gas and air are effectively mixed and Very uniformlydistributed to the jet-orifices or other ra lal burner tip members 13 inwhich the jet oriices are formed. The.central opening 14 in the burnerbody permits secondary air to ow therethrough.

The upper portion of the wall of this opening 14 is pre erably outwardlyflared at 15, the inner )et orifices 4 being in this wall.

I havev illustrated and described my imfound highly practical. I havenot attempted to illustrate or describe certain modifications oradaptations which I contemplate as it is believed that this disclosurewill enable those skilled inthe art to embody or adapt the same as maybe desired. .A

Having thus described my invention what I claim as new and desiretosecure by Letters Patentis: v,

1. A gas burner comprising an annular body portion yhaving an annularpassage therein and radial arms opening thereto and provided withradially disposed series of jet orifices extending into said arms, and arelatively short mixing tube disposed tangen- 'tially of said annularbody portion and opening tangentially to said annular passage thereinwhereby the passage constitutes a curved continuation of saidmixingftube, said mixing tube` being disposed in a plane below said armsin underlying relation to one of them, the top and inner side wall ofsaid mixing tube being extendedinto said passage in said burner bodyportion to constitute baliles for the adjacent burner arms and to directthe incoming gases into said annular passage. t 2. gas burner comprisingan annular` body portion having an annular passage therein and radialarms opening thereto and provided with radially disposed series of jetorifices extending into said arms, and a rela- 1M l meneer tively shortmixing tube disposed tangentially of said annular body portion andopening tangentially to said annular passage therein whereby the passageconstitutes a v 5 curved continuation of said mixing tube, said mixingtube being disposed in a plane below said arms in underlying relation toone of them.

3. A gas burner comprising an annular m body portion having an annularpassage therein and radial arms opening thereto and provided withradially disposed jet orices extending into said arms, and a Venturimixing tube opening tangentially to said annular 15 passage whereby thepassage constitutes a curved continuation of said mixing tube, theexpanding portion of said venturi being merged into the walls of saidannular passage. d. A gas burner comprising a body portion a@ havingan'annular/passage therein and provided with jet orifices incommunication with said passage, and a 'relatively short mixing tubeopening tangentially to said annular passage whereby the passageconstitutes a Z5 continuation of said mixing tube, the top and innerwalls of said mixingtube being extended into the passage andconstituting baiiies for the adjacent jet orifices and directing theincoming gases into said annular passage. 3@ li witness whereof l havehereunto set my Anrnnn J. nanna,

